Australian man urges medicos to join IS

A blue-eyed Australian has appeared in an apparent Islamic State propaganda video, urging medical professionals in the west to work alongside the terror group.

The young man, who addresses the camera dressed in scrubs and has a stethoscope slung around his neck, introduces himself as "Abu Yusuf" and says he left Australia behind to live under the Khalifa in the IS stronghold town of Raqqa in Syria.

"I saw this as part of my jihad for Islam to help the Muslim ummah (community) in the area that I could, which was the medical field," he says with a distinctive Australian accent.

"When I got here, I was very happy that I made the decision, and I was a little bit saddened at how long I'd delayed it. I wish I had come a lot sooner."

The slickly-produced 15-minute video, which has not been authenticated since it appeared on social media this weekend, comes complete with a logo for the "Islamic State Health Service".

Abu Yusuf is shown in a neonatal unit, tending to infants and advising others off-camera about their care.

"Wallah (I swear) it was a decision I was very happy I made, and it's a good system that they're running here," he says.

"Everything lived up to my expectations completely. And we really need your help. Any little thing gives the local people, who are truly suffering, a lot of benefit, so please consider coming. Please, don't delay.

"Like I said it's not equipment that we're lacking, it's truly just the staff. So insh'allah (if Allah wills) I'll see you soon.

A spokesman for Attorney-General George Brandis described the video as "vile".

"While we cannot comment specifically on the individual, this is clearly another vile attempt by ISIL to try to entice Australians and other westerners to put themselves and others at risk," he told AAP.

"Joining ISIL does not help the people of Syria and Iraq. It helps a terrorist organisation that's on a murderous rampage killing Muslim and non-Muslim people in their way."